Sash-fastener



(N0 Model.)

F- D. LIVINGSTONE,

SASH FAS'YIENER.

Patented Jen.. 1'8, 1887.

@Evita/Lao @o v i o ,$2

NITED TATES ATENE Enron..

i FREDERICK D. LIVINGSTOE, OF SPRINGFIELD, MASSACHUSETTS.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 356,143. dated January 18, 1i 87.

Application tiled September 29, 1886. Serial No. 214,954.

To all whom it may concern:

Be it known that I, FREDERICK D. LIVING- sToNE, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented a new and useful Improvement in Sash-Fasteners, of which the following is a specification.

My invention relates to an improvement in sash-fasteners; and it consists in the peculiar construction and combination of devices, which will be`morefully set forth hereinafter, and particularly pointed out in the claims.

Thisinvention is an improvement upon the device for which Letters Patent of the United States No. 338,534 were granted to me March 23, 1886.

In the drawings, Figure l is an elevation of the inner side of the window-frame, illustrating the manner of applying my sash-fastener thereto. Fig. 2 is a horizontal transverse sectional view of a portion of the Window-frame and of the sashes, taken on the line x x of Fig. l. Fig. 3 is a vertical sectional View taken on the line y grof Fig. 1. Fig. 4 is a detailperspective view of the metallic frame and the locking-pinions.

A represents the jamb ofthe windowframe. B represents the parting-strip. C represents the outside stop, and D represents the inner stop. E represents the upper sash, and F the lower sash. All of this is of the usual wellknown construction.

In the jamb A, at the center, vertically, of the window-frame, is made a recess, G, the upper and lower edges of which are inclined, as at g.

H represents a block, which fits in the recess G, the upper and lower edges of the said block being inclined, as ath, and fitting against the inclines g. A screw, I, is passed through the upper end of the block H, at a suit-able angle thereto, and enters the janib, and thus serves to secure the block firmly in the jamb and permits it to be readily moved therefrom.

K represents the metallic frame, comprising two parallel arms, L and M, arranged out of line with each other and connected together, the said arms extending in opposite directions. In the arm L is made a vertical slot, Z, in which is seated a spur-pinion, N ,that is journaled on a transverse pin, O. In the lower (No model.)

arm, M, is a similar slot, m, in which isjournaled a pinion, vI?. The block H is provided with an opening, h', corresponding to the size and shape of the frame K, and the latter is inserted in said opening and secured therein by means of screws R. The face of the frame K is iiusli with the face ot' the block H and of thejamb, and the inner edges of the' spur-pinions' project into the paths of the windowsashes.

i The sash E is provided on oneedge with a raclbar, e, with which the pinion P meshes,

l and vthe sash F has a`rack-bar,f, which meshes with the pinion N.

Through the central portion of the frame K, between the pinions, is a transverse opening, S, in which is iitted a slide or'detent, T, provided on opposite sides with feathers tt. The feather t is adapted to engage the spur-teeth of the pinion N, and the feather t is adapted to engage the spur-teeth of the pinion l?.

Transversely through the center of the block H extends an opening, h2, which aligns with the opening S, and in the inner edge of the jamb is made an opening, a, which aligns with the center of the opening h2.

U represents a stem or rod, which extends through the openings a and h2, and the inner end of the said stem or rod is threaded and screwed into an interiorlylthreaded opening in one end of the sliding detent. A shoulder, u, is formed on the rod U, and a washer, V, bears against the said shoulder.

W represents a coiled extensile spring, which is placed on the inner portion of the stem or rod and bears between the washer V and a similar washer, X, which bears against one side of the frame K. To the outer end of the rod or stem is attached a button, Z.

The spring IV is normally inert, and when the detent is in the position shown in Fig. 2, with its feathers engaging both pinions. By moving the detent in either direction to disengage one of the pinions, the spring is compressed, and when the pressure is relieved from the detent the spring, in expanding, returnslthe detent to its normal position. The

spring therefore performs the functions of the two springs described in my previous patent, thereby effecting an economy in the structure ofthe sash-fastener and reducing its cost.

'lOO

. directly in the jamb of the window-frame, ow-

ing to the difficulty of cutting the mortise to receive the frame K and the opening` to receive the detent, this being especially true when the fastener is to be attached to a window-frame c that has been built into a wall. To avoid this objection has been the object of my present improvement, and this is accomplished by first making the opening G to receive the bleek I-I, mortising the frame or case K into the block, and boring the transverse opening h2 through the bleek for the detent to slide in, and the opening a in the window-casing te receive the stem or rod, thus greatly simplifying the method of applying the sash-fastener te a window, and thereby greatly adding to the utility and practicability ef the invention.

The operation of my invention is as follows: The spring V normally keeps the detentin such a position that its feathers engage both the pinions and lock the same, so as to prevent them from rotating, and consequently prevent the sashes from being raisedor lowered. If it be desired te raise or lower the sash F, the stem or rod is pressed inwardly against the tension of the spring, thereby moving the detent until the feather t thereofelears the pinion P, when the latter is free to rotaie, and the sash F may be then easily raised or lowered. In order to raise or lower the sash E, the stem or red is drawn outwardly, thereby causing the feather t of the detent to disengage the pinion N.

The rear side of the frame K isopen, so as te reduce its weight and thus effect an econ-y omy in its manufacture.. Theepen side thus formed is closed at one edge of the frame by a curved ilat arm, K', which has one end secured on the shaft of one of the pinions and extends in rear of the rod U.

Having thus described my invention, I

claiml. The combination, in a sash-fastener, of the frame K,having the spur-pinions te engage the window-sashes, the detent adapted to slide in an opening in the frame K and provided with feathers te engage the pinions, the stem or rod attached te the said detent and having the shoulder a, the washer V, bearing against the said sh oulder, the washer X, bearing against one side of the frame K, and the coiled spring on the stem or rod, having its extremities bearing against the washers, substantially as described.

2. The combination of thefblock H, adapted to [it an opening in the side of a windowframe and removable therefrom, with the sash fastener having 'the frame K fitted to the block, whereby the said sash-fastener can be readily attached to the windowframe bysecuring the block I-Iin the opening in the said window-frame, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signaturein presence of two witnesses.

FREDERICK D. LIVINGSTONE.

Vit-nesses:

TIMOTHY-M. BROWN, R. F. HYDE. 

